Polysaccharides like xanthan gum can be found in bacterial capsules. The primary structural component in plants is cellulose which cannot be digested by the human digestive system. Starch is digested by amylase and is also insoluble in water. Plants store energy in the form of starch whereas animals store energy in the form of glycogen. Both glycogen and starch consist of glucose units. In short, they are called GAGs and because of their property of being lubricant and vicious, they are also called mucopolysaccharides. Glycosaminoglycans are defined by long unbranched polysaccharides that consist of repeating disaccharides. We can write the general formula of polysaccharides as Cn(H 2O) n-1, where n can be any number between 2. And when these single polysaccharides combine together, they form a larger molecule. It can be said that the molecules of a polysaccharide contain a specific number of sugar molecules. And the Glycosidic linkage is the reason that they have been also termed as Glycans. These monosaccharides chain and keep themselves attached to each other using the Glycosidic linkage. Polysaccharides correspond to the complex carbohydrates consisting of long chains of monosaccharides. Polysaccharides have ten to hundred carbohydrate molecules. Oligosaccharides have two to ten carbohydrate molecules.Disaccharides have two carbohydrate molecules.Monosaccharides have only one carbohydrate molecule.Depending on the number of monomers present in the carbohydrate, they are divided into various types. These monomer units are called monosaccharides. Carbohydrates correspond to the bio-polymers that are made up of monomer units.
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